I'm unable to fully test the upstream bugs as I can't install linux- headers-4.19.0-041900rc6-generic due to libssl1.1 not being available for 4.15. System does boot without the generic package on the new version though.
While i'm looking at upgrading the boxes to 18.04 from the 16.04 install, these are production servers and I can't just swap them over. I can see the random reboots happening as far back as February, but I don't have a log from those so it could be a different issue then. I know both -34 and -36 kernel builds had the issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1795659 Title: kernel panic using CIFS share smb2_push_mandatory_locks Status in linux package in Ubuntu: Incomplete Bug description: Description: Ubuntu 16.04.5 LTS Release: 16.04 Kernel: 4.15.0-36-generic #39~16.04.1-Ubuntu SMP Tue Sep 25 08:59:23 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Under load, getting a system crash when accessing files on an SMB3 share. dmesg from crash attached. I can upload the crash dump if needed. Share is mounted with the following options: "ro,_netdev,username=*****,password=*****,domain=*****,vers=3.02,sec=ntlmsspi,nounix,noserverino,nobrl,cache=none" Dmesg points to the cifs module [ 2192.662345] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [ 2192.662407] IP: smb2_push_mandatory_locks+0x10e/0x3b0 [cifs] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795659/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
